MULTIPARTICLE AGGREGATION MODEL FOR DENDRITIC GROWTH APPLIED TO EXPERIMENTS ON AMORPHOUS CO-P ALLOYS

We introduce a multiparticle biased diffusion limited aggregation mode l for dendritic growth. Its most relevant feature is that it includes the overall effect of strong applied electric fields and therefore app lies to nonequilibrium situations. We compare simulations of a two spe cies version of our model to actual experiments on preparation of amor phous Co-P alloys with very good agreement: The model accurately repro duces the dependence of composition, morphology, and growth time of th e alloy on the current. We conclude with a discussion of specific pred ictions and possible generalizations of the model.